Proportion Flashcards
1
Q
What does it mean when two variables are directly proportional?
A
It mean changing on variable will change the other by the same scale factor.
So multiplying or dividing by any constant will have the same effect on both variables.
y=kx k is called the constant of proportion
You can also write y proportional sign x
To see proportional sign go to page 33
2
Q
Direct proportional graphs are
A
Straight lines through the origin
3
Q
Is two variable are inversely proportional mean
A
It means that changing one variable will change the other by the reciprocal of the scale factor.
So multiplying one variable by any constant is the same as dividing the other by the same constant.
y=k/x k is called the constant of proportionality
Which is the same as
Y proportional sign 1/x
